return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2Cl (chloromethyl radical)

using model chemistry: MP3=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
1 2 no C2V 2B1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-498.773991
Energy at 298.15K 
HF Energy-498.486260
Nuclear repulsion energy45.015714
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP3=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3229 3036 7.42      
2 A' 1437 1352 14.17      
3 A' 863 811 36.50      
4 A' 358 336 57.61      
5 A" 3380 3178 0.07      
6 A" 1010 949 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 5138.0 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 4831.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/cc-pVDZ
ABC
8.95863 0.51984 0.49239

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 1.127 0.000
Cl2 -0.012 -0.589 0.000
H3 0.142 1.625 0.957
H4 0.142 1.625 -0.957

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.71551.08941.0894
Cl21.71552.41632.4163
H31.08942.41631.9132
H41.08942.41631.9132

picture of chloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.205 Br2 C1 H4 117.205
H3 C1 H4 122.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-498.773908
Energy at 298.15K 
HF Energy-498.486001
Nuclear repulsion energy45.056216
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP3=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3241 3048 5.54      
2 A1 1438 1352 14.76      
3 A1 867 816 34.73      
4 B1 257i 242i 69.79      
5 B2 3396 3193 0.02      
6 B2 1002 942 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 4843.2 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 4554.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/cc-pVDZ
ABC
9.06030 0.52081 0.49250

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.124
Cl2 0.000 0.000 0.589
H3 0.000 0.961 -1.635
H4 0.000 -0.961 -1.635

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.71261.08821.0882
Cl21.71262.42222.4222
H31.08822.42221.9215
H41.08822.42221.9215

picture of chloromethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 118.004 Br2 C1 H4 118.004
H3 C1 H4 123.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability